Seventy-four years on, the heroism and sacrifice of these young men is the stuff of legend, romanticised and steeped in patriotism. So often portrayed with the iconic RAF moustache, the majority were probably too young to even have a moustache. Who were these men? How do they remember the Battle of Britain and what became of those who survived the years of war? What happened when they stopped being pilots, stepping out of uniform and back into civilian life?